[libcxx-commits] [libcxx] [libc++] LWG4497: `std::nullopt_t` should be comparable (PR #195549)

[A. Jiang via libcxx-commits]

frederick-vs-ja wrote:

> I think you should mention the LWG issue in the title such as: `LWG4497: std::nullopt_t should be comparable`.

@elhewaty I modified the PR title (which will be used as the squashed commit message by default) as suggested. Please double-check.

Also, I removed "should" from the PR message. This PR should completely implement LWG4497, so "should" in the PR message is meaningless and somehow misleading.

https://github.com/llvm/llvm-project/pull/195549